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A123366
Primes of the form 10*(10^(x+1)+10^x-1)+7.
0
1097, 1099997, 10999997, 1099999997, 1099999999999999999999997, 10999999999999999999999997, 1099999999999999999999999999999999999999997, 10999999999999999999999999999999999999999999999999999999999999999997
OFFSET
1,1
COMMENTS
10(10^803+10^802-1)+7 is the largest PRP with less than 1000 digits.
PROG
(PARI) g(n) = for(x=1, n, y=10*(10^(x+1)+10^x-1)+7; if(ispseudoprime(y), print1(y", ")))
CROSSREFS
Sequence in context: A184470 A234722 A160370 * A186476 A096926 A249287
KEYWORD
nonn
AUTHOR
Cino Hilliard, Oct 12 2006
STATUS
approved